Answer: He mowed the lawn 5 times.
Step-by-step explanation:
Amount that Tyler receives receives for laundry in one month is $0.75
Amount that Tyler receives receives for mowing the lawn in one month is $2.00
Let x = the number of times that he does laundry in a month.
Let y = the number of times that he mows the lawn in a month.
He does the laundry 5 more times than he mows the lawn, this means
x = y + 5
In that month, the parents paid him $17.50.
Therefore,
0.75x + 2y = 17.50 - - - - - - - 1
Substituting x = y + 5 into equation 1
0.75(y+5) + 2y = 17.50
0.75y + 3.75 + 2y = 17.5
0.75y + 2y = 17.5 - 3.75
2.75y = 13.75
y = 13.75/2.75 = 5
x = y + 5 = 5 + 5 = 10
He mowed the lawn 5 times.
